将两个变量传递给单独的表...关联问题

Question

我开发了一个应用程序，我似乎遇到了一些与我的关联有关的问题。我有以下几点：

class User < ActiveRecord::Base 
    acts_as_authentic 

    has_many :questions, :dependent => :destroy 
    has_many :sites , :dependent => :destroy 
end 

问题

class Question < ActiveRecord::Base 
    has_many :sites, :dependent => :destroy 
    has_many :notes, :through => :sites 
    belongs_to :user 
end 

网站（认为这是问题的答案）

class Site < ActiveRecord::Base 
    acts_as_voteable :vote_counter => true 

    belongs_to :question 
    belongs_to :user 
    has_many :notes, :dependent => :destroy 
    has_many :likes, :dependent => :destroy 

    has_attached_file :photo, :styles => { :small => "250x250>" } 

    validates_presence_of :name, :description 

end 

当一个站点（答案）创建我成功通过question_id到Sites表，但我无法弄清楚如何传递user_id。这里是我的SitesController＃创建

def create 
     @question = Question.find(params[:question_id]) 
     @site = @question.sites.create!(params[:site]) 

     respond_to do |format| 
      format.html { redirect_to(@question) } 
      format.js 
     end 
     end 

Answer 1

我认为这将做的工作

@question = current_user.questions.find params[:question_id] 

如果不是，那么就分配mannualy。

@site = @question.sites.build(params[:site]) 
@site.user = current_user 
@site.save